.beta.-Naphthol Orange .beta.-Naphthyl orange 1-p-Sulfophenylazo-2-naphthol, monosodium salt 11550 Orange 2-Naphthol Orange II 633-96-5 Acid Leather Orange G Acid Leather Orange PRW Acid Leather Orange extra Acid Orange Acid Orange 7 Acid Orange A Acid Orange II Acilan Orange II Airedale Orange II Amacid Orange Y Atul Acid Orange II Benzenesulfonic acid, 4-[(2-hydroxy-1-naphthalenyl)azo]-, monosodium salt Betanaphthol orange Brasilan Orange A Bucacid Orange A C.I. 15510 C.I. Acid Orange 7 C.I. Acid Orange 7, monosodium salt CI 15510 Calcocid Orange Y Certiqual Orange II Colacid Orange Curol Orange D And C Orange No. 4 D&C Orange 4 D&C Orange No. 4